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A1GP Duncan Tappy, the reigning Formula Renault UK Champion, has been signed by Team Great Britain as the rookie test driver for practice sessions.

NASCAR The Auto Club 500 at Fontana was delayed until Monday following heavy rain and was eventually won by Carl Edwards. n Edwards and his team were docked 100 points and 10 win bonus points after his Roush-run Ford was found to be running without a lid for the oil tank box in the UAW Dodge 400 at Las Vegas Motor Speedway.

MotoGP Valentino Rossi has set up his own company, VR/46 Srl, to look after his sponsorship, public image and contracts.

BTCC Stephen Jelley, who finished third in the 2007 British F3 Championship, is to race a BMW 320si with Team RAC. n Matt Allison has moved to Robertshaw Racing and will drive a Chevrolet Lacetti after finishing 12th last year in a SEAT. n Three former England footballers – John Barnes, Luther Blissett and Les Ferdinand – have started up a new outfit, Team 48, and will field two 2007 Alfa Romeo 156s throughout 2008.

ALMS Alex Wurz, who has been confirmed as a Peugeot driver at this year’s Le Mans 24 Hours, has expressed interest in entering the series on a full-time basis.

The Aston Martin-powered LMP1 Lolas set the fastest times on the final day of testing at Paul Ricard in the absence of Audi.

IRL Ed Carpenter and A J Foyt IV will stay with Vision Racing for the 2008 season. n Sarah Fisher, having lost her drive with Dreyer & Reinbold, has started her own team, Sarah Fisher Racing, for a crack at the Indy 500.

Le Mans Eurosport has signed a three-year deal with the ACO to cover the 24 Hours live.

DTM Mercedes has announced its driver line-up for 2008 and has confirmed it will be running nine cars, five of which will be 2007-spec models driven by six-time GP winner Ralf Schumacher, Maro Engel, Gary Paffett, Susie Stoddart and Mathias Lauda. The new C-Class will be driven by Paul di Resta, Bernd Schneider, Bruno Spengler and Jamie Green.